summaryrefslogtreecommitdiffstats
path: root/src/LexSQL.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/LexSQL.cpp')
-rwxr-xr-xsrc/LexSQL.cpp342
1 files changed, 342 insertions, 0 deletions
diff --git a/src/LexSQL.cpp b/src/LexSQL.cpp
new file mode 100755
index 0000000..d8e14b9
--- /dev/null
+++ b/src/LexSQL.cpp
@@ -0,0 +1,342 @@
+// Scintilla source code edit control
+/** @file LexSQL.cxx
+ ** Lexer for SQL, including PL/SQL and SQL*Plus.
+ **/
+// Copyright 1998-2005 by Neil Hodgson <[email protected]>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "Platform.h"
+
+#include "PropSet.h"
+#include "Accessor.h"
+#include "StyleContext.h"
+#include "KeyWords.h"
+#include "Scintilla.h"
+#include "SciLexer.h"
+
+static inline bool IsAWordChar(int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_');
+}
+
+static inline bool IsAWordStart(int ch) {
+ return (ch < 0x80) && (isalpha(ch) || ch == '_');
+}
+
+static inline bool IsADoxygenChar(int ch) {
+ return (islower(ch) || ch == '$' || ch == '@' ||
+ ch == '\\' || ch == '&' || ch == '<' ||
+ ch == '>' || ch == '#' || ch == '{' ||
+ ch == '}' || ch == '[' || ch == ']');
+}
+
+static inline bool IsANumberChar(int ch) {
+ // Not exactly following number definition (several dots are seen as OK, etc.)
+ // but probably enough in most cases.
+ return (ch < 0x80) &&
+ (isdigit(ch) || toupper(ch) == 'E' ||
+ ch == '.' || ch == '-' || ch == '+');
+}
+
+static void ColouriseSQLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
+ Accessor &styler) {
+
+ WordList &keywords1 = *keywordlists[0];
+ WordList &keywords2 = *keywordlists[1];
+ WordList &kw_pldoc = *keywordlists[2];
+ WordList &kw_sqlplus = *keywordlists[3];
+ WordList &kw_user1 = *keywordlists[4];
+ WordList &kw_user2 = *keywordlists[5];
+ WordList &kw_user3 = *keywordlists[6];
+ WordList &kw_user4 = *keywordlists[7];
+
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ bool sqlBackslashEscapes = styler.GetPropertyInt("sql.backslash.escapes", 0) != 0;
+ bool sqlBackticksIdentifier = styler.GetPropertyInt("lexer.sql.backticks.identifier", 0) != 0;
+ int styleBeforeDCKeyword = SCE_SQL_DEFAULT;
+ for (; sc.More(); sc.Forward()) {
+ // Determine if the current state should terminate.
+ switch (sc.state) {
+ case SCE_SQL_OPERATOR:
+ sc.SetState(SCE_SQL_DEFAULT);
+ break;
+ case SCE_SQL_NUMBER:
+ // We stop the number definition on non-numerical non-dot non-eE non-sign char
+ if (!IsANumberChar(sc.ch)) {
+ sc.SetState(SCE_SQL_DEFAULT);
+ }
+ break;
+ case SCE_SQL_IDENTIFIER:
+ if (!IsAWordChar(sc.ch)) {
+ int nextState = SCE_SQL_DEFAULT;
+ char s[1000];
+ sc.GetCurrentLowered(s, sizeof(s));
+ if (keywords1.InList(s)) {
+ sc.ChangeState(SCE_SQL_WORD);
+ } else if (keywords2.InList(s)) {
+ sc.ChangeState(SCE_SQL_WORD2);
+ } else if (kw_sqlplus.InListAbbreviated(s, '~')) {
+ sc.ChangeState(SCE_SQL_SQLPLUS);
+ if (strncmp(s, "rem", 3) == 0) {
+ nextState = SCE_SQL_SQLPLUS_COMMENT;
+ } else if (strncmp(s, "pro", 3) == 0) {
+ nextState = SCE_SQL_SQLPLUS_PROMPT;
+ }
+ } else if (kw_user1.InList(s)) {
+ sc.ChangeState(SCE_SQL_USER1);
+ } else if (kw_user2.InList(s)) {
+ sc.ChangeState(SCE_SQL_USER2);
+ } else if (kw_user3.InList(s)) {
+ sc.ChangeState(SCE_SQL_USER3);
+ } else if (kw_user4.InList(s)) {
+ sc.ChangeState(SCE_SQL_USER4);
+ }
+ sc.SetState(nextState);
+ }
+ break;
+ case SCE_SQL_QUOTEDIDENTIFIER:
+ if (sc.ch == 0x60) {
+ if (sc.chNext == 0x60) {
+ sc.Forward(); // Ignore it
+ } else {
+ sc.ForwardSetState(SCE_SQL_DEFAULT);
+ }
+ }
+ break;
+ case SCE_SQL_COMMENT:
+ if (sc.Match('*', '/')) {
+ sc.Forward();
+ sc.ForwardSetState(SCE_SQL_DEFAULT);
+ }
+ break;
+ case SCE_SQL_COMMENTDOC:
+ if (sc.Match('*', '/')) {
+ sc.Forward();
+ sc.ForwardSetState(SCE_SQL_DEFAULT);
+ } else if (sc.ch == '@' || sc.ch == '\\') { // Doxygen support
+ // Verify that we have the conditions to mark a comment-doc-keyword
+ if ((IsASpace(sc.chPrev) || sc.chPrev == '*') && (!IsASpace(sc.chNext))) {
+ styleBeforeDCKeyword = SCE_SQL_COMMENTDOC;
+ sc.SetState(SCE_SQL_COMMENTDOCKEYWORD);
+ }
+ }
+ break;
+ case SCE_SQL_COMMENTLINE:
+ case SCE_SQL_COMMENTLINEDOC:
+ case SCE_SQL_SQLPLUS_COMMENT:
+ case SCE_SQL_SQLPLUS_PROMPT:
+ if (sc.atLineStart) {
+ sc.SetState(SCE_SQL_DEFAULT);
+ }
+ break;
+ case SCE_SQL_COMMENTDOCKEYWORD:
+ if ((styleBeforeDCKeyword == SCE_SQL_COMMENTDOC) && sc.Match('*', '/')) {
+ sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
+ sc.Forward();
+ sc.ForwardSetState(SCE_SQL_DEFAULT);
+ } else if (!IsADoxygenChar(sc.ch)) {
+ char s[100];
+ sc.GetCurrentLowered(s, sizeof(s));
+ if (!isspace(sc.ch) || !kw_pldoc.InList(s + 1)) {
+ sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
+ }
+ sc.SetState(styleBeforeDCKeyword);
+ }
+ break;
+ case SCE_SQL_CHARACTER:
+ if (sqlBackslashEscapes && sc.ch == '\\') {
+ sc.Forward();
+ } else if (sc.ch == '\'') {
+ if (sc.chNext == '\"') {
+ sc.Forward();
+ } else {
+ sc.ForwardSetState(SCE_SQL_DEFAULT);
+ }
+ }
+ break;
+ case SCE_SQL_STRING:
+ if (sc.ch == '\\') {
+ // Escape sequence
+ sc.Forward();
+ } else if (sc.ch == '\"') {
+ if (sc.chNext == '\"') {
+ sc.Forward();
+ } else {
+ sc.ForwardSetState(SCE_SQL_DEFAULT);
+ }
+ }
+ break;
+ }
+
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_SQL_DEFAULT) {
+ if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
+ sc.SetState(SCE_SQL_NUMBER);
+ } else if (IsAWordStart(sc.ch)) {
+ sc.SetState(SCE_SQL_IDENTIFIER);
+ } else if (sc.ch == 0x60 && sqlBackticksIdentifier) {
+ sc.SetState(SCE_SQL_QUOTEDIDENTIFIER);
+ } else if (sc.Match('/', '*')) {
+ if (sc.Match("/**") || sc.Match("/*!")) { // Support of Doxygen doc. style
+ sc.SetState(SCE_SQL_COMMENTDOC);
+ } else {
+ sc.SetState(SCE_SQL_COMMENT);
+ }
+ sc.Forward(); // Eat the * so it isn't used for the end of the comment
+ } else if (sc.Match('-', '-')) {
+ // MySQL requires a space or control char after --
+ // http://dev.mysql.com/doc/mysql/en/ansi-diff-comments.html
+ // Perhaps we should enforce that with proper property:
+//~ } else if (sc.Match("-- ")) {
+ sc.SetState(SCE_SQL_COMMENTLINE);
+ } else if (sc.ch == '#') {
+ sc.SetState(SCE_SQL_COMMENTLINEDOC);
+ } else if (sc.ch == '\'') {
+ sc.SetState(SCE_SQL_CHARACTER);
+ } else if (sc.ch == '\"') {
+ sc.SetState(SCE_SQL_STRING);
+ } else if (isoperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_SQL_OPERATOR);
+ }
+ }
+ }
+ sc.Complete();
+}
+
+static bool IsStreamCommentStyle(int style) {
+ return style == SCE_SQL_COMMENT ||
+ style == SCE_SQL_COMMENTDOC ||
+ style == SCE_SQL_COMMENTDOCKEYWORD ||
+ style == SCE_SQL_COMMENTDOCKEYWORDERROR;
+}
+
+// Store both the current line's fold level and the next lines in the
+// level store to make it easy to pick up with each increment.
+static void FoldSQLDoc(unsigned int startPos, int length, int initStyle,
+ WordList *[], Accessor &styler) {
+ bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
+ bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+ bool foldOnlyBegin = styler.GetPropertyInt("fold.sql.only.begin", 0) != 0;
+
+ unsigned int endPos = startPos + length;
+ int visibleChars = 0;
+ int lineCurrent = styler.GetLine(startPos);
+ int levelCurrent = SC_FOLDLEVELBASE;
+ if (lineCurrent > 0) {
+ levelCurrent = styler.LevelAt(lineCurrent - 1) >> 16;
+ }
+ int levelNext = levelCurrent;
+ char chNext = styler[startPos];
+ int styleNext = styler.StyleAt(startPos);
+ int style = initStyle;
+ bool endFound = false;
+ for (unsigned int i = startPos; i < endPos; i++) {
+ char ch = chNext;
+ chNext = styler.SafeGetCharAt(i + 1);
+ int stylePrev = style;
+ style = styleNext;
+ styleNext = styler.StyleAt(i + 1);
+ bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
+ if (foldComment && IsStreamCommentStyle(style)) {
+ if (!IsStreamCommentStyle(stylePrev)) {
+ levelNext++;
+ } else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
+ // Comments don't end at end of line and the next character may be unstyled.
+ levelNext--;
+ }
+ }
+ if (foldComment && (style == SCE_SQL_COMMENTLINE)) {
+ // MySQL needs -- comments to be followed by space or control char
+ if ((ch == '-') && (chNext == '-')) {
+ char chNext2 = styler.SafeGetCharAt(i + 2);
+ char chNext3 = styler.SafeGetCharAt(i + 3);
+ if (chNext2 == '{' || chNext3 == '{') {
+ levelNext++;
+ } else if (chNext2 == '}' || chNext3 == '}') {
+ levelNext--;
+ }
+ }
+ }
+ if (style == SCE_SQL_OPERATOR) {
+ if (ch == '(') {
+ levelNext++;
+ } else if (ch == ')') {
+ levelNext--;
+ }
+ }
+ // If new keyword (cannot trigger on elseif or nullif, does less tests)
+ if (style == SCE_SQL_WORD && stylePrev != SCE_SQL_WORD) {
+ const int MAX_KW_LEN = 6; // Maximum length of folding keywords
+ char s[MAX_KW_LEN + 2];
+ unsigned int j = 0;
+ for (; j < MAX_KW_LEN + 1; j++) {
+ if (!iswordchar(styler[i + j])) {
+ break;
+ }
+ s[j] = static_cast<char>(tolower(styler[i + j]));
+ }
+ if (j == MAX_KW_LEN + 1) {
+ // Keyword too long, don't test it
+ s[0] = '\0';
+ } else {
+ s[j] = '\0';
+ }
+ if ((!foldOnlyBegin) && (strcmp(s, "if") == 0 || strcmp(s, "loop") == 0)) {
+ if (endFound) {
+ // ignore
+ endFound = false;
+ } else {
+ levelNext++;
+ }
+ } else if (strcmp(s, "begin") == 0) {
+ levelNext++;
+ } else if (strcmp(s, "end") == 0 ||
+ // DROP TABLE IF EXISTS or CREATE TABLE IF NOT EXISTS
+ strcmp(s, "exists") == 0) {
+ endFound = true;
+ levelNext--;
+ if (levelNext < SC_FOLDLEVELBASE) {
+ levelNext = SC_FOLDLEVELBASE;
+ }
+ }
+ }
+ if (atEOL) {
+ int levelUse = levelCurrent;
+ int lev = levelUse | levelNext << 16;
+ if (visibleChars == 0 && foldCompact)
+ lev |= SC_FOLDLEVELWHITEFLAG;
+ if (levelUse < levelNext)
+ lev |= SC_FOLDLEVELHEADERFLAG;
+ if (lev != styler.LevelAt(lineCurrent)) {
+ styler.SetLevel(lineCurrent, lev);
+ }
+ lineCurrent++;
+ levelCurrent = levelNext;
+ visibleChars = 0;
+ endFound = false;
+ }
+ if (!isspacechar(ch)) {
+ visibleChars++;
+ }
+ }
+}
+
+static const char * const sqlWordListDesc[] = {
+ "Keywords",
+ "Database Objects",
+ "PLDoc",
+ "SQL*Plus",
+ "User Keywords 1",
+ "User Keywords 2",
+ "User Keywords 3",
+ "User Keywords 4",
+ 0
+};
+
+LexerModule lmSQL(SCLEX_SQL, ColouriseSQLDoc, "sql", FoldSQLDoc, sqlWordListDesc);
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-14 10:26:35 +0000